摘要:
A method for solid-state/melt extrusion, as can be accomplished using a unitary extruder apparatus comprising a solid-state shearing zone and a melt-state extrusion zone.
摘要:
An apparatus are described for extruding a soft, low density elastomeric thermoplastic foam. A single screw extruder having a very large screw length to diameter ratio is provided to thoroughly mix the thermoplastic elastomer with a blowing agent. A thin, substantially taperless die is also provided to form extruded profiles. By using such an apparatus, a variety of complex-shaped extruded profiles may be easily produced.
摘要:
A process and apparatus are described for extruding a soft, low density elastomeric thermoplastic foam. A single screw extruder having a very large screw length to diameter ratio is provided to thoroughly mix the thermoplastic elastomer with a blowing agent. A thin, substantially taperless die is also provided to form extruded profiles. By using such a process and apparatus, a variety of complex-shaped extruded profiles may be easily produced.
摘要:
A process and apparatus are described for extruding a soft, low density elastomeric thermoplastic foam. A single screw extruder having a very large screw length to diameter ratio is provided to thoroughly mix the thermoplastic elastomer with a blowing agent. A thin, substantially taperless die is also provided to form extruded profiles. By using such a process and apparatus, a variety of complex-shaped extruded profiles may be easily produced.
摘要:
Methods of transforming an ultra-high molecular weight polymer into a processable material and compositions resulting from those methods. The methods may include a combination of applying a shear force to a polymer and heating the polymer. Also described are methods for using the compositions.
摘要:
A co-rotating twin screw extruder for forming fragments is disclosed. The extruder comprises of an intake zone for receiving one or more excipient(s) suitable for oral dosage or one or more excipient(s) suitable for oral dosage along with one or more active pharmaceutical ingredient, a melt zone for softening at least one excipient to form a viscous mass or melt and a fragmenting zone for fragmenting and cooling the viscous mass into cooled fragments and an extruder outlet for recovering the cooled fragments from the extruder.
摘要:
A slot die assembly for applying at least one material onto a substrate includes an adapter having a passive heat transfer device, a shim package fluidically connected to the adapter, the shim package having a first material discharge slot and a second material discharge slot, and a die plate having a one or more fluid channels fluidically connected to the shim package. The assembly also includes one or more mounting studs extending from the adapter, the mounting studs configured to engage a parent machine.
摘要:
The present invention is related to the elaboration of flexible films from cassaya starch for the manufacture of biodegradable packaging useful in the packing and packaging of dry foods and other products. The novel films of the invention are produced by extrusion of a mixture of cassaya starch and plasticizer.
摘要:
The present invention is related to the elaboration of a compound material molded from cassava flour for the manufacture of biodegradable packaging useful in packing and packaging of dry foods and other products. The semi-rigid novel compound material is elaborated through thermo-pressing of a mixture of cassava flour and fique fiber.
摘要:
A fuel line comprising a thermoplastic composition is described. The thermoplastic compositions exhibit high strength and flexibility and can be used to form one or more layers of single layer or multi-layer fuel lines. Methods for forming the thermoplastic compositions are also described. Formation methods include dynamic vulcanization of a composition that includes an impact modifier dispersed throughout a polyarylene sulfide. A crosslinking agent is combined with the other components of the composition following dispersal of the impact modifier. The crosslinking agent reacts with the impact modifier to form crosslinks within and among the polymer chains of the impact modifier. The compositions can exhibit excellent physical characteristics at extreme temperatures.